<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .father{
       color: red;
       background-color: red;
       width: 300px;
       height: 300px;
    }
    .son{
color: aqua;
background-color: aqua;
width: 200px;
height: 200px;
    }
  </style>
</head>
<body>
    <div id="app"></div>
    <template id="my-app">
     <div class="father" @click="father">
      <div class="son" @click.stop="son">
      </div>
     </div>
    </template>
    <script src="../lib/js/vue.js"></script>
  <script>
    const app=Vue.createApp({
      template:'#my-app',
      data(){
        return{
          
        }
      },
       methods:{
      father(){
        alert('father')
      },
      son(e){
        alert('son')
}
       }
    })
    app.mount("#app")
  </script>
</body>
</html>